Over the last 12 months, Clean Harbors insiders reported no purchases and 2 sales totaling $474K across SEC Form 4 filings.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Aug 3, 2026 | Robertson AndreaD | ▼ Sale | 789 | $314.01 | $248K | -8.1% | — |
| May 26, 2026 | States LaurenD | ▼ Sale | 789 | $286.19 | $226K | -6.5% | — |
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $CLH feed.